An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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If NASA sent birds into space they would soon die; they need gravity to swallow.
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An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
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